
import 'package:firebase_auth/firebase_auth.dart';

abstract class BaseAuth{
  Future<String>  signIn(String username,String password);
  Future signOut();
}

class Auth implements BaseAuth{
 FirebaseAuth _firebaseAuth=FirebaseAuth.instance;
  @override
  Future<String> signIn(String username, String password) {
    // TODO: implement signIn
    throw UnimplementedError();
  }

  @override
  Future signOut() {
    // TODO: implement signOut
    throw UnimplementedError();
  }
  
}